Burner for pulverulent fuel



March 1932- w. KLEINOW 1,849,841

BURNER FOR PULVERULENT FUEL Filed Jan. 9, 1929 Ti {9 ,5 r e 49 WalterKlein ow, by His Attorney.

Patented Mar. 15, 1932 UNITED STATES WALTER KLEINOW, OF HENNIGSDORF,NEAR BER-LIN, GERMANY, ASSIGNOR TO GENERAL ELECTRIC COMPANY, ACORPORATION OF NEW YORK BURNER FOR PULVERULENT FUEL Application filedJanuary 9, 1929, Serial No.

My invention relates to burners for pulverulent fuel for furnaces of thekind described in U. S. Patent No. 1,739,035, granted December 10, 1929,by myself jointly with Albert a Morgenroth, Friedrich Reinhardt, WilhelmBruer. As described in the application aforesaid it is desirable toprovide elficient cooling means for the burners. It is an object of myinvention to improve such cooling means. To this end I provide insteadof a water cooling system for the burner a heat abducting member of somesuitable substance having high heat conductivity for instance of a metalsuch as copper and I connect this member with the burner so as to exertthereon the desired cooling action.

Preferably the heat abducting member is connected with the boiler. In alocomotive boiler it may for instance be secured to the foundation ringof the fire box, and preferably the discharge slots for the mixture areformed in it. v

The water cooling system described in the patent aforesaid is efiicientbut it involves a certain amount of complication which may cause troubleand also interferes with the ready inspection of the furnace. Thesedrawbacks are eliminated by the present invention, in which the desiredeffect is achieved without water piping and heating of the slot walls tosuch an extent as to cause backfiring and damage to the Walls iseliminated.

In the preferred embodiment of my invention which will be describedhereinafter, the heat abducting member, Which may be made of copper, isof angular or channel section, is connected with the supply conduit forthe mixture and attached to the boiler. In this manner the heat from theWalls of the dis charge slots is rapidly and readily transferred to theboiler and to the water in the boiler. Asmentioned above, in boilers ofthe locomotive type the member is secured to the foundation ring of thefire box. 7

The discharge slots for the mixture are preferably made in the member bymilling or by some other suitable process and so that the walls of theslots are integral with the body whichalso favors intense heatdisperslon.

into the fire box 2. a

The lining 11 is slotted for the reception 331,341, and in Germanyanuary 14, 1928,

' In the drawings afiixed to this specification and forming part thereofmy invention is illustrated as applied to a locomotive fire box,one ofthe waterlegs and the adjacent frame of the locomotive being shown.Figure 1 represents a transverse section, Figure 2A represents afragmentary horizontal section along line 2A2A of Figure 1 and Flgure 2Brepresents a fragmentary'horizontal of the burner unit. Theunitcomprises a con duit 7' to which the mixture is supplied asdescribed in the said patent and which is secured to a heat abductingmember 61 of angular section, the horizontal flangeof which is attachedto thefoundation ring 2.

vided with a cover plate 20, having slots 15, which may be inserted in arecess of'the flanged conduit-Tand held in position by the verticalflange of the member 61. The member 61 is slotted at 16, preferably bymilling.

In this manner the heat from the slots 16 is transferred to the waterspace of the boiler through the member 61 and the foundation ring 2, andthe slots are efficiently cooled.

As mentioned above, the member 61 is pref 'erably made of copper. "-Theconduit 7 is pro- With the member 61 as illustrated to re- 6 place thewater piping described in the said patent, the size of the burner unitis much reduced and the heating surface of the combustion chamber isconserved in proportion. The unit is arranged very conveniently betweenthe frame plates 62 of the locomotive and the combustion chamber 42. T

I wish it to be understood that I do not de modifications will occur toa person skilled in the art.

sire to be limited to the exact details of con-; struction shown anddescribed for obvious In the claims affixed to this specification no i:Q,

selection of any particular modification of the invention is intended tothe exclusion of other modifications thereof and the right tosubsequently make claim to any modification not covered by these claimsis expressly reserved. I claim r 1. The combination of a locomotiveboiler having a wall defining a part of a liquid space, a fuel burnerfor supplying fuel for heating 10 said boiler, said burner comprising "aplate formed froma materialhaving a high-heat conductivity and providedwith discharge slots, and means thermally connectingsaid plate to saidwall for conducting heat from v the plate to said Wall.

'2. The combination of a locomotiveboiler, -.a fuel burner comprised'ofa fuel conduit-and a face plate provided withdischarge passages throughwhich fuel for heating the said boiler is emitted, a second plate formedof material 7 having a high heat conductivity attached to saidfirst-named plate between the combustion chamber and the burner, andmeans for thermally connecting said last-named plate to a heat absorbingportion of the boiler.

3;. The combination. of a locomotive boiler having a water leg and afoundation ring, a pulverulent fuel burner comprised of a pulverulentfuelconduit and a slotted face plate 30, for-supplying fuel to heat saidboiler, a second slotted plate formed of high heat conducting'materialconnected to the first-named I plate, and means thermally connectingsaid last-named plate to the foundation ring.

4. The combustion of a locomotive boiler having-a wall, of a combustionchamber comprising a side wall and a pulverulent fuel burner extendingalong said side wall and having a slotted faceth-rough which the pul- 40verulent fuel is suppliedto said combustion chamber, and a heatconducting metal sheet .connecting said burner face with the outer wallof said boiler.

' In testimony whereof I aifix my signature. 7 v i V WALTER KLEINOW.

